+ if(mouse)
+ {
+ mouse->signal_button_press.connect(sigc::mem_fun(this, &Root::button_press_event));
+ mouse->signal_button_release.connect(sigc::mem_fun(this, &Root::button_release_event));
+ mouse->signal_axis_motion.connect(sigc::mem_fun(this, &Root::axis_motion_event));
+ }
+
+ if(keyboard && !input_method)
+ input_method = new SystemKeyboardInput(*this, *keyboard);
+
+ if(touchscreen)
+ {
+ touchscreen->signal_button_press.connect(sigc::mem_fun(this, &Root::touch_press_event));
+ touchscreen->signal_button_release.connect(sigc::mem_fun(this, &Root::touch_release_event));
+ touchscreen->signal_axis_motion.connect(sigc::mem_fun(this, &Root::touch_motion_event));
+ }
+}
+
+Root::~Root()
+{
+ delete shprog;
+ delete input_method;
+ if(own_input)
+ {
+ delete keyboard;
+ delete mouse;
+ }
+}
+
+void Root::tick()
+{
+ Time::TimeStamp t = Time::now();
+ Time::TimeDelta dt = (last_tick ? t-last_tick : Time::zero);
+ last_tick = t;
+
+ animate(dt);
+
+ if(tooltip_timeout && Time::now()>tooltip_timeout)
+ {
+ std::string tip;
+ if(Widget *wdg = get_descendant_at(pointer_x, pointer_y))
+ {
+ tip = wdg->get_tooltip();
+ tooltip_target = wdg;
+ }
+ else
+ {
+ tip = signal_tooltip.emit(pointer_x, pointer_y);
+ tooltip_target = this;
+ }
+
+ if(!tip.empty())
+ {
+ if(!lbl_tooltip)
+ {
+ lbl_tooltip = new Label;
+ add(*lbl_tooltip);
+ lbl_tooltip->set_style("tooltip");
+ }
+
+ lbl_tooltip->set_text(tip);
+ lbl_tooltip->autosize();
+ const Geometry &tip_geom = lbl_tooltip->get_geometry();
+ unsigned x = pointer_x+10;
+ unsigned y = pointer_y-10-lbl_tooltip->get_geometry().h;
+ if(x+tip_geom.w>geom.w)
+ {
+ if(pointer_x>static_cast<int>(tip_geom.w+2))
+ x = pointer_x-2-tip_geom.w;
+ else
+ x = geom.w-tip_geom.w;
+ }
+ lbl_tooltip->set_position(x, y);
+ raise(*lbl_tooltip);
+ lbl_tooltip->set_visible(true);
+ }
+
+ tooltip_timeout = Time::TimeStamp();
+ }
+}
+
+void Root::render()
+{
+ rebuild_hierarchy();
+
+ GL::Bind bind_blend(GL::Blend::alpha());
+
+ GL::Renderer renderer(&camera);
+ renderer.set_shader_program(shprog);
+ Widget::render(renderer);
+}
+
+void Root::setup_frame(GL::Renderer &)
+{
+ rebuild_hierarchy();
+}
+
+void Root::render(GL::Renderer &renderer, const GL::Tag &tag) const
+{
+ if(tag.id)
+ return;
+
+ GL::Renderer::Push push(renderer);
+ renderer.set_camera(camera);
+ renderer.set_shader_program(shprog);
+ GL::BindRestore bind_blend(GL::Blend::alpha());
+ GL::BindRestore unbind_dtest(static_cast<GL::DepthTest *>(0));
+ Widget::render(renderer);
+}
+
+bool Root::button_press_event(unsigned btn)
+{
+ if(visible)
+ {
+ Widget *old_focus = pointer_focus;
+
+ int x, y;
+ get_pointer(x, y);
+ button_press(x, y, btn);
+
+ if(pointer_focus || old_focus)
+ return true;
+ }
+
+ return false;
+}
+
+bool Root::button_release_event(unsigned btn)
+{
+ if(visible)
+ {
+ Widget *old_focus = pointer_focus;
+
+ int x, y;
+ get_pointer(x, y);
+ button_release(x, y, btn);
+
+ if(pointer_focus || old_focus)
+ return true;
+ }
+
+ return false;
+}
+
+bool Root::axis_motion_event(unsigned, float, float)
+{
+ if(visible)
+ {
+ int x, y;
+ get_pointer(x, y);
+ pointer_motion(x, y);
+
+ if(!tooltip_target)
+ {
+ pointer_x = x;
+ pointer_y = y;
+ tooltip_timeout = Time::now()+700*Time::msec;
+ }
+ else if(get_descendant_at(x, y)!=tooltip_target)
+ {
+ if(lbl_tooltip)
+ lbl_tooltip->set_visible(false);
+ tooltip_target = 0;
+ }
+
+ if(pointer_focus)
+ return true;
+ }
+
+ return false;
+}
+
+bool Root::touch_press_event(unsigned finger)
+{
+ if(visible)
+ {
+ Widget *old_focus = touch_focus;
+
+ int x, y;
+ get_touch(finger, x, y);
+ touch_press(x, y, finger);
+
+ if(touch_focus || old_focus)
+ return true;
+ }
+
+ return false;
+}
+
+bool Root::touch_release_event(unsigned finger)
+{
+ if(visible)
+ {
+ Widget *old_focus = touch_focus;
+
+ int x, y;
+ get_touch(finger, x, y);
+ touch_release(x, y, finger);
+
+ if(touch_focus || old_focus)
+ return true;
+ }
+
+ return false;
+}
+
+bool Root::touch_motion_event(unsigned axis, float, float)
+{
+ if(visible)
+ {
+ unsigned finger = axis/2;
+ int x, y;
+ get_touch(finger, x, y);
+ touch_motion(x, y, finger);
+
+ if(touch_focus)
+ return true;
+ }
+
+ return false;
+}
+
+void Root::get_pointer(int &x, int &y)
+{
+ x = (mouse->get_axis_value(0)*0.5+0.5)*geom.w;
+ y = (mouse->get_axis_value(1)*0.5+0.5)*geom.h;